ELATEC TWN4 family of transponder readers and writers allows users to read and write to almost any 125 kHz and 13.56 MHz tags and/or labels.

 It supports all major transponders from various suppliers like ATMEL, EM, ST, NXP, TI, HID, LEGIC, etc. and ISO standards like ISO 14443A/B (T=CL), ISO 15693, ISO 18092 / ECMA-340 (NFC).

The new generation is a direct enhancement to the successful TWN3 family as it comes in the same mechanical dimensions
(OEM PCB and desktop housing).

The reader supports host communication via USB or RS-232.

Special features:
+ Powerful SDK for writing apps which are executed directly on the reader
+ Firmware update in the field possible
+ On-board 18 kB flash storage, e.g. for storing user accessible non-volatile data
+ Direct chip-commands support
+ Two on-board SAM sockets (Secure Access Module)
+ CCID and PC/SC 2.01
+ Dedicated expansion bus for connection of LCD, mass storage, etc.
+ 2 GPIOs
+ Supports quick (re)configuration over network and over wireless interface with TWN4 CONFIG Card
+ TWN4 Upgrade Card for P option available on request
+ 3D construction data (STEP) available on request
+ Supports initialization of segments (LEGIC SM-4500 only)
+ High-level command library for cash / value handling, e.g. electronic purse (LEGIC SM-4500 only)